2020-2025
From January 2018 to December 2024, 75% of Lassa fever confirmed cases were from Ondo (33%), Edo (31%) and Bauchi (11%).
In 2025, as of epi week 32, 87% of LF cases are from Ondo (33%), Bauchi (23%), Edo (17%), and Taraba (14%) States.
Total confirmed cases: 849
Deaths from Confirmed Cases: 159
Case Fatality Ratio: 19%
Number of Health Care Workers: 23
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 2244 | 281 | 37 | 13% | ||||
| 2024 | 1830 | 262 | 17 | 6% | ||||
| 2023 | 1999 | 354 | 41 | 12% | ||||
| 2022 | 1160 | 273 | 50 | 18% | ||||
| 2021 | 490 | 117 | 38 | 32% | ||||
| 2020 | 853 | 363 | 65 | 18% | ||||
| Source: NCDC | ||||||||
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 889 | 192 | 16 | 8% | ||||
| 2024 | 825 | 165 | 31 | 19% | ||||
| 2023 | 756 | 115 | 23 | 20% | ||||
| 2022 | 710 | 118 | 12 | 10% | ||||
| 2021 | 61 | 10 | 2 | 20% | ||||
| 2020 | 294 | 44 | 20 | 45% | ||||
| Source: NCDC | ||||||||
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 2280 | 147 | 24 | 16% | ||||
| 2024 | 2281 | 220 | 26 | 12% | ||||
| 2023 | 2566 | 295 | 36 | 12% | ||||
| 2022 | 2275 | 230 | 29 | 13% | ||||
| 2021 | 1332 | 158 | 14 | 9% | ||||
| 2020 | 1619 | 338 | 39 | 12% | ||||
| Source: NCDC | ||||||||
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 327 | 118 | 36 | 31% | ||||
| 2024 | 237 | 99 | 21 | 21% | ||||
| 2023 | 279 | 93 | 29 | 31% | ||||
| 2022 | 84 | 34 | 15 | 44% | ||||
| 2021 | 58 | 19 | 12 | 63% | ||||
| 2020 | 118 | 57 | 22 | 39% | ||||
| Source: NCDC | ||||||||
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 264 | 23 | 13 | 57% | ||||
| 2024 | 319 | 44 | 25 | 57% | ||||
| 2023 | 256 | 51 | 29 | 57% | ||||
| 2022 | 235 | 41 | 19 | 46% | ||||
| 2021 | 89 | 17 | 8 | 47% | ||||
| 2020 | 249 | 76 | 22 | 29% | ||||
| Source: NCDC | ||||||||
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 74 | 15 | 4 | 27% | ||||
| 2024 | 132 | 32 | 3 | 9% | ||||
| 2023 | 40 | 11 | 1 | 9% | ||||
| 2022 | 127 | 48 | 8 | 17% | ||||
| 2021 | 8 | 2 | 0 | 0% | ||||
| 2020 | 95 | 38 | 8 | 21% | ||||
| Source: NCDC | ||||||||
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 89 | 14 | 7 | 50% | ||||
| 2024 | 31 | 4 | 2 | 50% | ||||
| 2023 | 51 | 9 | 2 | 22% | ||||
| 2022 | 193 | 24 | 8 | 33% | ||||
| 2021 | 8 | 0 | 0 | – | ||||
| 2020 | 37 | 9 | 2 | 22% | ||||
| Source: NCDC | ||||||||
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 155 | 14 | 5 | 36% | ||||
| 2024 | 1062 | 63 | 11 | 17% | ||||
| 2023 | 183 | 38 | 4 | 11% | ||||
| 2022 | 227 | 35 | 8 | 23% | ||||
| 2021 | 21 | 6 | 0 | 0% | ||||
| 2020 | 42 | 9 | 4 | 44% | ||||
| Source: NCDC | ||||||||
Any questions or suggestions? Contact us: Anaïs Legand and Antoine Chaillon
As of 2025, week 32